On Sat, Dec 18, 1999 at 02:52:48AM +0600, Azhar H. Chowdhury wrote:
>
> Dear Sir/Madam,
>
> I am facing following serious problem, please help me.
>
> My ISP assigned me 10 fixed IP addresses for my network
> (say 203.127.140.10 to 203.127.140.19). I am dialing to
> ISP from RH 6.0 (PPPD, Modem attached COM1). without any
> problem I can dial to ISP and can ping/telnet/smtp etc from
> RH 6.0 server but other (WinPC, Mac) can't reach outside this network.
>
> I installed my old RH4.2 at same machine and changed Kernel
> (with IP Gateway enabled), after then everythings works fine.
> I mean other can use RH4.2 machine as a gateway.
I can't tell from your e-mail if you're trying to masquerade the other
machines or not, but you definitely need IP forwarding enabled.
The later Linux kernels do not forward IP packets by default. That
feature must be enabled (this is a POSIX compliance restriction). To
enable IP forwarding, you must write a 1 into a special file in /proc,
like so:
echo "1" > /proc/sys/net/ipv4/ip_forward"
Red Hat's initscripts will do this for you, however, if you tell your
system that it should be forwarding packets... you can do this by running
linuxconf and finding the right place to turn it on, or you can just do it
by hand and make the FORWARD_IPV4 variable in /etc/sysconfig/network to be
set to 'true'
--
Steve Borho Voice: 314-615-6349
Network Engineer
Celox Communications Corp
Fortune of the day:
Generosity and perfection are your everlasting goals.
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